Second Minor Revision — Advice Needed

Hello everyone,

I’m working on a systematic review and meta-analysis (SRMA) that underwent a first minor revision and has now been returned for a second minor revision, but for only a single point. The reviewer asked for an additional methodological clarification about the dose used in two out of the four included studies.

For one study, I contacted the author and they replied that they no longer have the information. For the other study, I emailed two authors last Wednesday but have not received a response. I even tried calling overseas, but the operators weren’t able to connect me to them. I also sent a follow-up email yesterday, but still no response, and honestly, I have lost hope that they will reply in time.

My resubmission deadline is May 13.
I’m wondering:

• How long should I wait before resubmitting?
• If I resubmit noting that the requested information could not be obtained, how will the reviewer likely react?
• What happens if I resubmit now but the authors reply after I’ve already submitted?

It’s a bit stressful because I’ve made a serious good-faith effort to retrieve the missing information, but I don’t want this to delay or negatively impact the final decision. Would appreciate any advice or similar experiences. Thanks!